Andrew Lloyd Webber (piano, stringarranger), John Ashton Thomas (stringarranger, piano), Everton Nelson (concertmaster, violin), Marius DeVries (programmer), Adam Langston (programmer), Matt Robertson (programmer), Cast Of The Motion Picture "Cats" (vocalist), Rebel Wilson (vocalist), Robbie Fairchild (vocalist), Jason Derulo (vocalist), Nile Rodgers (guitar, vocalist), CHIC (vocalist), Kimberley Davis (vocalist), Russell Graham (vocalist, keyboard, programmer), Richard Hilton (keyboard), Steve Jankowski (trumpet), Brandon Wright (saxophone), Jerry Barnes (bassguitar), Ralph Rolle (drumkit), James Corden (vocalist), Cory English (vocalist), Idris Elba (vocalist), Danny Collins (vocalist), Naoimh Morgan (vocalist), Francesca Hayward (vocalist), Dame Judi Dench (vocalist), Sir Ian McKellen (vocalist), Andy Parker (viola), Peter Lale (viola), Polly Wiltshire (viola), Gustav Clarkson (viola), Gillianne Haddow (viola), Martin Humbey (viola), Sue Dench (viola), Jake Walker (viola), Ian Burdge (cello), Chris Worsey (cello), Frank Schaefer (cello), Paul Kegg (cello), Caroline Dearnley (cello), Adrian Bradbury (cello), Mary Scully (doublebass), Allen Walley (doublebass), Steve Mair (doublebass), Richard Pryce (doublebass), Kate Robinson (violin), Natalia Bonner (violin), Emil Chakalov (violin), Dai Emanuel (violin), Julian Leaper (violin), Rick Koster (violin), Odile Ollagnon (violin), Lorraine McAslan (violin), Laura Melhuish (violin), Ralph De Souza (violin), Ian Humphries (violin), Mark Berrow (violin), Martyn Jackson (violin), Patrick Kiernan (violin), Jonathan Evans-Jones (violin), Debbie Preece (violin), Debbie Widdup (violin), Richard George (violin), Paul Willey (violin), Dave Williams (violin), Miranda Dale (violin), Eliza Marshall (altoflute, flute), Helen Keen (altoflute, flute), David Thomas (oboe), Jane Marshall (englishhorn), Jon Carnac (clarinet), Anthony Pike (bassclarinet), Richard Watkins (frenchhorn), Martin Owen (frenchhorn), Simon Rayner (frenchhorn), Alexei Watkins (frenchhorn), Pat White (trumpet), Kate Moore (trumpet), Dan Newell (trumpet), Mark Nightingale (trombone), Ed Tarrant (trombone), Andy Wood (basstrombone), Owen Slade (tuba), Bill Lockhart (timpani), Frank Ricotti (percussion), Chris Baron (percussion), Skaila Kanga (harp), Peter Murray (piano), Jodi Milliner (bassguitar), Ian McKellen, Steven McRae (vocalist), Taylor Swift (vocalist), Laurie Davidson (vocalist), Jennifer Hudson (vocalist), Simon Lee, Graham Hurman
